Sr. SW Engineer

Visa is a world leader in payments technology, facilitating transactions between consumers, merchants, financial institutions and government entities across more than 200 countries and territories, dedicated to uplifting everyone, everywhere by being the best way to pay and be paid.

At Visa, you'll have the opportunity to create impact at scale — tackling meaningful challenges, growing your skills and seeing your contributions impact lives around the world. Join Visa and do work that matters — to you, to your community, and to the world.

Progress starts with you.

Visa’s Technology Organization is a community of problem solvers and innovators reshaping the future of commerce. We operate the world’s most sophisticated processing networks capable of handling more than 65k secure transactions a second across 80M merchants, 15k Financial Institutions, and billions of everyday people. While working with us you’ll get to work on complex distributed systems and solve massive scale problems centered on new payment flows, business and data solutions, cyber security, and B2C platforms.

 We are seeking a talented and motivated Software Engineer to join our VAS Innovation team. As a key member of the team, you will play a critical role in developing cutting-edge solutions, leveraging innovative technologies, and enhancing the capabilities of our Value-Added Services (VAS) platform.

You will be tasked to quickly grasp and evaluate new ideas and technologies from both internal and external sources and match them appropriately with emerging technology and business opportunities, building a culture of innovation and a drive for excellence.

Essential Functions:

• Innovative Development: Engage in the design, development, and implementation of innovative software solutions, using generative AI and modern integration patterns. Contribute to a culture of innovation by actively exploring and applying new ideas and technologies.
• Collaborative Engineering: Collaborate with cross-functional teams to develop and deliver complex projects that integrate emerging technologies with our existing platforms. Work closely with Product Office, Operations & Infrastructure, Cybersecurity, Client Support, and other Product Development teams to build comprehensive solutions.
• Continuous Learning: Engage in continuous learning and development, actively seeking opportunities to enhance your skills and knowledge. Collaborate with peers to share insights and drive team growth.
• Client-Focused Solutions: Develop solutions with a client-centric mindset, ensuring that the VAS platform delivers exceptional value and innovation. Engage with client feedback to refine and improve our offerings.
• API and Integration Development: Contribute to the design and development of APIs that enhance the integration of our Value-Added Services applications, platforms, and solutions.
• Technology Modernization: Participate in the advancement of our modernization roadmap by adopting best-in-class technology solutions for our core platform, expanding our market reach and client base.
• Process Improvement: Continuously assess and improve technology stacks, development processes, and methodologies to enhance productivity, quality, and time-to-market.
• Engineering Excellence: Adhere to industry best practices in software development, emphasizing quality, security, performance, scalability, availability, and resilience. Contribute to the management and reduction of technical debt within projects.
• Automation and Best Practices: Implement best engineering practices and automate software development, testing, and deployment processes. Ensure the timely delivery and maintenance of multiple services, focusing on continuous improvement.
• Incident and Change Management: Support incident management, change, and problem management processes to ensure the high availability and reliability of our services. Participate in root-cause analysis and troubleshooting to resolve issues effectively.

This is a hybrid position. Expectation of days in office will be confirmed by your hiring manager.

Basic Qualifications:
5 or more years of relevant work experience with a bachelor’s degree or 2 years with an Advanced Degree (Masters/PhD in Engineering/Computer Science).
Self-driven and willing to work across technologies/languages.
Expert-level skills in Java, Python and NodeJS with skills in C++ and C# is a bonus.
Experience in building Generative AI applications, conversational AI, RAG architectures, techniques and libraries
In-depth understanding of NLP including tokenization, word embeddings, and basic sequence models.
Proficiency in implementing and fine-tuning AI models using popular frameworks (e.g., TensorFlow, PyTorch, scikit-learn).
Understanding of model compression techniques and their trade-offs.
Awareness of transfer learning concepts and their applications.
Ability to design and implement AI components and integrate them into larger systems.
Familiarity with common robustness issues in AI systems.
Exposure to leading-edge areas such as Machine Learning, Deep Learning, Stream Computing and MLOps.
Proficiency in front-end web development technologies like ReactJS/Angular/NodeJS.
Ability to work with large datasets and perform exploratory data analysis.
Experience with data preprocessing, feature engineering, and model evaluation techniques.
Experience in configuring build and deployment systems Docker, Jenkins, and Kubernetes.
Expertise in handling multi-threading, concurrency, and error-handling.
Demonstrated proficiency in troubleshooting, root-cause analysis, application design, and implementing large components for enterprise projects.
Knowledge of version control, CI/CD pipelines, and best practices for ML model deployment.
Familiarity with deep learning basics, including neural network architectures and training procedures.
Working knowledge using distributed in-memory computing technologies like Redis.

Preferred Qualifications:
Understanding enterprise security, certificate management, etc.
Hands-on experience with Jenkins and container deployment architecture.
Experience using OAuth2.0, SSO, and authentication methods/protocols.
Expertise in application security, SSDLC, and knowledge of cryptography fundamentals.
Experience in the payments tech industry is a plus.

The Skills You Bring:
Energy and Experience: A growth mindset that is curious and passionate about technologies and enjoys challenging projects on a global scale
Challenge the Status Quo: Comfort in pushing the boundaries, ‘hacking’ beyond traditional solutions
Language Expertise: Expertise in one or more general development languages (e.g., Java, Python, NodeJS, C#, C++)
Builder: Experience building and deploying modern services and web applications with quality and scalability
Learner: Constant drive to learn new technologies such as GenAI, Angular, React, Kubernetes, Docker, etc.
Partnership: Experience collaborating with Product, Test, Dev-ops, and Agile/Scrum teams

Visa is an EEO Employer. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability or protected veteran status. Visa will also consider for employment qualified applicants with criminal histories in a manner consistent with EEOC guidelines and applicable local law.